Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!uunet!mcsun!hp4nl!mhres!squirrel!pronto!jv
From: jv@mh.nl (Johan Vromans)
Newsgroups: comp.lang.perl
Subject: Re: alpha numbers
Message-ID: <1991Jun27.082309.5793@pronto.mh.nl>
Date: 27 Jun 91 08:23:09 GMT
References: <1991Jun23.200134.18835@pronto.mh.nl>
	<1991Jun24.231628.14446@jpl-devvax.jpl.nasa.gov>
	<1991Jun25.134732.1668@pronto.mh.nl> <3708@wn1.sci.kun.nl>
Sender: jv@pronto.mh.nl (Johan Vromans)
Reply-To: Johan Vromans <jv@mh.nl>
Organization: Multihouse Automation, the Netherlands
Lines: 24
In-Reply-To: hansm@cs.kun.nl's message of 26 Jun 91 14:20:37 GMT
X-Md4-Signature: 33aa4ddc63c401e6964018d4b9f32e10


In article <3708@wn1.sci.kun.nl> hansm@cs.kun.nl (Hans Mulder) writes:

> Are you sure you want this?  Consider:
> $a="1d8";
> print ++$a;	# prints 1d9
> print ++$a;	# prints 1e0
> print ++$a;	# prints 2, since $a is now numeric.
> 
> Magical increment, indeed.

Okay, let's drop the magical increment part of my original posting.

I still would like opinions on getting a warning (when using '-w') in
situations where aritmetic is performed on a ill-formed number. In
general, this would require an explicit syntax check before calling
atof on a string.

	Johan
-- 
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